Homework Help: physics

Posted by flea on Monday, December 12, 2011 at 4:02pm.

a toaster draws a current of 13.0A and has an electric potential difference of 120.V. For how long must it remain on to use 2.0x10^5J of electrical energy?

physics - Damon, Monday, December 12, 2011 at 4:22pm
Power = amps * volts in watts
power * time = energy

13 * 120 * t = 200,000 Joules

t is in seconds

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